Siren - Siren is a great, free, file renamer for Windows (including 64 bits). No installation required.
Attribute Magic - AttributeMagic.com - utility to change file timestamps and metadata
Bulk Rename Utility - Bulk Rename Utility: Free File Rename Utility for Windows. Bulk Rename Utility allows you to easily batch rename files and folders based upon many flexible criteria. Free Download.
BulkFileChanger - BulkFileChanger is a small utility that allows you to create files list from multiple folders, and...
Flexible Renamer - Batch file renaming that supports exif, id3, and more meta information.
Attribute Changer - Attribute Changer freeware is a powerful Windows Explorer add-on, available at your fingertips...